Revised performance calculations for the subject airplane have been prepared on the basis of wind tunnel data, estimated engine performance, and correlations with the results of flight tests. These calculations were necessary to provide complete performance data for airplane equipped with an engine incorporating a carburetor for fuel metering instead of the speed density pump originally anticipated in preparing report NA-8284 dates September 25, 1944. This report presents the results of the revised calculations together with a discussion of the data and methods used.

Performance data are presented in both graphical and tabulated form in the summary. General performance data are shown for the design condition only; combat radius of action data are shown for seven loading conditions.

SUMMARY OF CALCULATED PERFORMANCE

All performance figures are based on N.A.C.A. standard atmospheric conditions and gross weight as given in item (2) except as noted.